{
  "manageEntity": {
    "action": "Update",
    "entityId": "40456963",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1c7520fce26d8f60825150b61a0d92b940c4a98e969b1d20b75bee1c0145a63a",
    "signature": "0x210ca811610ae5094d06fb350e225afaafe6229d380e8d185f73855995f791eb1b276df83017ec1f1d0004b4daf2957dbc5f7ca2ea5ebdb98ea5a20de8903dd41b",
    "signer": "0xc03B0DC91D4dd69BB843F957bAe8D3B7aA1317EB",
    "userId": "40456963"
  }
}